Mailing Address
P.O. Box 1049
Columbus, Ohio 43216-1049

Physical Address
Lazarus Government Center
50 W. Town St., Suite 700
Columbus, Ohio 43215

Phone: (614) 644-3020

Directions to Central Office

Groveport Field Office
4675 Homer Ohio Lane
Groveport, Ohio 43125

Directions to Groveport Field Office

The Groveport Field Office houses:

• the Division of Air Pollution Control’s air lab;
• the biological and water quality monitoring and assessment section of the Division of Surface Water;
• the site investigation field unit of the Division of Emergency and Remedial Response; and
• the Office of Special Investigations (OSI).

Physical Address
Lazarus Government Center
50 W. Town St., Suite 700
Columbus, Ohio 43215

Mailing Address
Ohio EPA - CDO
P.O. Box 1049
Columbus, Ohio 43216-1049

Directions to Central District Office

Telephone: (614) 728-3778
Fax: (614) 728-3898

Counties Served: Delaware, Fairfield, Fayette, Franklin, Knox, Licking, Madison, Morrow, Pickaway and Union.

Location and Mailing Address:
2110 East Aurora Road
Twinsburg, Ohio 44087

Telephone: (330) 963-1200
Fax: (330) 487-0769

Directions to Northeast District Office

Counties Served: Ashtabula, Carroll, Columbiana, Cuyahoga, Geauga, Holmes, Lake, Lorain, Mahoning, Medina, Portage, Stark, Summit, Trumbull and Wayne.

Location and Mailing Address:
347 N. Dunbridge Road
Bowling Green, Ohio 43402

Phone: (419) 352-8461
Fax: (419) 352-8468

Directions to Northwest District Office

Counties Served: Allen, Ashland, Auglaize, Crawford, Defiance, Erie, Fulton, Hancock, Hardin, Henry, Huron, Lucas, Marion, Mercer, Ottawa, Paulding, Putnam, Richland, Sandusky, Seneca, Van Wert, Williams, Wood and Wyandot.

Location and Mailing Address:
2195 Front Street
Logan, Ohio 43138

Phone: (740) 385-8501
Fax: (740) 385-6490

Directions to Southeast District Office

Counties Served: Adams, Athens, Belmont, Coshocton, Gallia, Guernsey, Harrison, Hocking, Jackson, Jefferson, Lawrence, Meigs, Monroe, Morgan, Muskingum, Noble, Perry, Pike, Ross, Scioto, Tuscarawas, Vinton and Washington.

Location and Mailing Address:
401 East Fifth Street
Dayton, Ohio 45402

Phone: (937) 285-6357
Fax: (937) 285-6249

Directions to Southwest District Office

Counties Served: Brown, Butler, Champaign, Clark, Clermont, Clinton, Darke, Greene, Hamilton, Highland, Logan, Miami, Montgomery, Preble, Shelby and Warren.